Molding device.



L. R. KRl JG. MOLDING DEVICE- I APPLICATION FILED FEB. 8,19- LQ1A59-ATTORNE'Y Patented Apr. 3,1917.

LOUIS B. KRUG, OF ALBANY, NEW YORK, ASSIGNOR TO BUBDICK & SON, OFALBAN'SZ', NEW YORK.

MOLDING DEVICE.

To all whom it may concern:

Be it known that I, LOUIS R. KRUG, a citizen of the United States ofAmerica, residing at the city of Albany, in the county of Albany andState of New York, have invented certain new and useful Improvements inMolding Devices, of which the following is a specification.

My invention relates to molding devices, and the object of my inventionis to provide a countersunk hinged tube adapted to be formed into. acasting during the casting process; together with such other elementsand combinations as are hereinafter more particularly set forth.

I accomplish these objects by means of the mechanism illustrated in theaccompanying drawing, in which:

Figure 1 is a perspective View of a pattern.

Fig. 2 is a perspective view of a casting.

Fig. 3 is a perspective view of my countersunk hinged tube.

Fig.4 is a section along the line, XX, on Fig. 8, when sand has beenplaced in the tube.

Fig. 5 is a plan of the hinged plate when opened or before being bent.

Fig. 6 is an elevation of the tube before'it is placed in the plate.

Similar letters refer to similar parts throughout the several views.

It is often desirable to have the heads of bolts, screws or rivets,especially in stoves, countersunk, and in order to accomplish this it isusually necessary to drill and countersink the casting after it is madeso as to make an opening or hole in the casting and enlarge it, so thatthe head of the bolt, screw or rivet may pass through it and be causedto assume a position flush with the surface of the casting. In order todo away with this drilling and countersinking work, I have provided avery effective, economical and simple hinged tube which may be in sertedin the pattern and become a part of the casting, and the countersunktube will become in the casting a countersunk passageway for the bolt,screw or rivet.

Referring to the drawing: [I 'show in Fig. 5 a thin tin plate, A, withan enlarged opening, -B, near one end and a smaller opening, C, near theother end. I bend this plate along a line between the openings, as

Specification of Letters Patent.

Application filed February 8, 1917.

Patented Apr. a, rear.

Serial No. 147,375.

at D, causing the bent portion to extend substantially at right anglesto the remaining .portion, and then I bend the plate again vWhen thetube is in position in the plate as shown in Fig. 3, it is inserted inthe slot, J, in the pattern, K, where it may be held in place by havingthe sides of the plate enter the grooves, L, along the sides of theslot, J. I do not limit myself to this holding means.

Sand is placed in the tube, G, filling the cup-shaped or countersunkportion, H, as shown in Fig. 4, and when the pattern with thecountersunk hinged tube in it is placed in the sand and after thepattern has been removed leaving the hinged tube in the sand and theiron is poured, it fills up the'spaces between the two separatedportions, at and Z), of the plate, A; and when the casting is removedfrom the sand it will be in the form shown in Fig. 2 with thecountersunk opening in the tube, the tin plate A, forming a part of thecasting.

What I claim as my invention and desire to secure by Letters Patent is:

1. A countersunk hinged tube, comprising a metallic plate bent uponitself, forming two portions slightly separated from each other; a tubehaving one end in an opening in one of the portions of said plate; anenlarged, flaring cup-shaped flange portion formed at the other end ofsaid tube secured in an opening in the other portion of said plate; anda pattern provided with an opening into which said plate carrying saidtube may be inserted and held during the molding process.

2. A thin metallic plate provided with an enlarged opening near one endand a smaller opening near the other end; said plate bent at rightangles along a line between said openings and then bent along a line ashort distance removed from the-first mentioned smaller of saidopenings, all substantially line to such a position that the two majoras described. 10 portions of the plate will be located one In testimonywhereof I have afiixed my above and slightly removed from the other;signature in the presence of two Witnesses.

5 a tube having a flaring cup-shaped enlarged LOUIS R. KRUG.

portion at one end adapted to fit in the Witnesses: larger of saidopenings in the plate, the FREDERICK W. CAMERON, other end of said tubeadapted to fit into the BEULAH CABLE.

Copies of this patent may be, obtained for five cents each, byaddressing the Commissioner of Patents, Washington, D. 0.

